US5157007A - Catalyst for purification of exhaust gases of diesel engines and method of use - Google Patents
Catalyst for purification of exhaust gases of diesel engines and method of use Download PDFInfo
- Publication number
- US5157007A US5157007A US07/667,211 US66721191A US5157007A US 5157007 A US5157007 A US 5157007A US 66721191 A US66721191 A US 66721191A US 5157007 A US5157007 A US 5157007A
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- United States
- Prior art keywords
- support material
- activity
- catalyst
- catalyst according
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/648—Vanadium, niobium or tantalum or polonium
- B01J23/6482—Vanadium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
Description
______________________________________ O.sub.2 measurement Oxymat Siemens AG HC measurement FID Pierburg Messtechnik NO, NO.sub.X measurement model 951 A Beckman Instruments CO measurement Binos Leybold AG CO.sub.2 measurement Binos Leybold AG SO.sub.2 measurement Binos Leybold AG. ______________________________________
______________________________________ Engine settings: Stage rpm Load (Newton) Exhaust-gas temperature °C. ______________________________________ 1 2100 71 150-250 2 3000 76 250-450. ______________________________________
______________________________________ rpm Load (Newton) Exhaust-gas temperature °C. ______________________________________ 2900 76 550. ______________________________________
______________________________________ T.sub.50% (°C.) CO HC ______________________________________ Fresh state Example 1 203 210 Reference Example 1 425 262 100 h engine ageing Example 1 208 225 Reference Example 1 -- 277. ______________________________________
______________________________________ Fresh state Example 1 CO = 92 HC = 63 SO.sub.2 = 19 Reference Example 1 CO = 17 HC = 38 SO.sub.2 = 4 100 h ageing Example 1 CO = 82 HC = 66 SO.sub.2 = 12 Reference Example 1 CO = 10 HC = 32 SO.sub.2 = 2. ______________________________________
______________________________________ Engine operation Fresh state (30 min.; 33 N; 2900 rpms) ______________________________________ Example 1 0.9 kPa 0.9 kPa Reference Example 1 4.2 kPa 20 kPa. ______________________________________
TABLE 1 ______________________________________ Catalytic composition of Examples 3-28 Noble- metal Carrier material g/dm.sup.3 Noble content other Example metal g/dm.sup.3 Al.sub.2 O.sub.3 oxides V.sub.2 O.sub.5 ______________________________________ 3 Pt 0.35 60 -- 1 4 Pt 0.35 200 -- 10 5Pt 1 60 -- 5 6 Pt 1.75 140 -- 5 2 (ref.) Pt 1.75 140 -- -- 7 Pt 2.83 60 -- 1 8 Pt 2.83 200 -- 10 9 Pt 1.75 140 -- 5 10 Pt:Pd = 2:1 1.5 140 -- 5 3 (ref.) Pt:Pd = 2:1 1.5 140 -- -- 11 Pt:Pd = 1:3 1.5 140 -- 5 12 Pd 1.5 140 -- 5 13 Pd:Ir = 5:1 1.5 140 -- 5 14 Pt:Rh = 5:1 1.6 140 -- 5 15 Pt:Ir = 5:1 1.75 140 -- 5 16 Pt 1.75 126 14 TiO.sub.2 5 17 Pt 1.75 112 28 TiO.sub.2 5 18 Pt 1.75 84 56 TiO.sub.2 5 19 Pt 1.75 28 112 TiO.sub.2 5 20 Pd 1.5 60 80 SiO.sub.2 5 21 Pt 1.75 70 70 mor- 5 denite 22 Pt 1.75 140 -- 5 (from KVO.sub.3) 23 Pt 1.75 -- 84 TiO.sub.2 8 56 SiO.sub.2 24 Pt 1.75 -- 140 TiO.sub.2 5 25 Pt 1.75 -- 70 TiO.sub.2 5 70 ZrO.sub.2 5 26 Pt 1.75 -- 140 TiO.sub.2 5 27 Pt 1.75 -- 140 TiO.sub.2 5 28 Pt 1.75 -- 140 TiO.sub.2 5 4 (ref.) Pt 1.75 -- 140 TiO.sub.2 -- ______________________________________
TABLE 2 ______________________________________ Conversion of the catalysts of Examples 3- 28 in the fresh state Conversion T.sub.50% (°C.) 350° C. SO.sub.2 (%) NO* Example CO HC CO HC 350° C. 450° C. 350° C. ______________________________________ 3 239 245 92 69 2 24 not docu- mented 4 250 255 91 68 4 7 not docu- mented 5 236 240 91 75 4 25 not docu- mented 6 225 227 91 79 10 20 1 2 (ref.) 223 227 92 78 60 68 8 7 214 218 91 84 28 48 not docu- mented 8 213 222 91 84 16 33 not docu- mented 9 230 232 91 78 9 19 not docu- mented 10 238 242 90 71 15 28 2 3 (ref.) 235 245 89 70 55 63 6 11 242 248 88 68 16 24 1 12 260 275 85 67 8 17 0 13 251 257 87 69 12 12 0 14 240 244 91 72 13 22 1 15 229 240 90 80 11 22 1 16 227 233 91 81 14 25 2 17 222 224 91 82 13 18 2 18 216 218 92 83 11 15 1 19 210 212 91 81 7 9 1 20 255 272 85 69 7 19 0 21 230 233 90 74 8 22 1 22 232 236 89 74 10 24 2 23 215 219 90 79 8 15 0 24 220 224 88 74 7 13 1 25 223 227 91 78 9 15 0 26 222 227 90 76 8 17 1 27 217 224 91 78 8 18 1 28 252 261 62 53 4 11 0 4 (ref.) 221 228 90 77 41 65 8 ______________________________________ *The determination of the conversion rates NO + 1/2O.sub.2 -- NO.sub.2 took place indirectly via the measurement of the concentration of NO.sub. and NO in the exhaustgas current after the catalyst by means of the difference expressed as follows: ##STR1##
TABLE 3 ______________________________________ Conversion of a few catalysts after 100 h engine endurance test at 550° C. exhaust-gas temperature CO.sub.50% HC.sub.50% CO.sub.max HC.sub.max SO.sub.2 (%) Example °C. °C. % % 350° C. 450° C. ______________________________________ 6 229 230 92 76 2 16 2 (ref.) 225 228 91 75 58 63 10 240 255 85 71 0 11 3 (ref.) 245 260 82 70 32 60 11 275 302 55 43 3 17 12 280 305 53 40 7 20 14 233 239 91 74 1 16 16 234 240 90 76 0 13 17 236 242 91 77 0 11 18 233 240 91 78 0 5 19 235 241 91 76 0 0 ______________________________________
Claims (22)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/928,050 US5514354A (en) | 1989-12-09 | 1992-08-11 | Method for using a catalyst to purify exhaust gases from a diesel engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3940758A DE3940758A1 (en) | 1989-12-09 | 1989-12-09 | METHOD FOR PURIFYING THE EXHAUST GAS FROM DIESEL ENGINES |
DE3940758 | 1989-12-09 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US61634990A Continuation-In-Part | 1989-12-09 | 1990-11-21 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/928,050 Division US5514354A (en) | 1989-12-09 | 1992-08-11 | Method for using a catalyst to purify exhaust gases from a diesel engine |
Publications (1)
Publication Number | Publication Date |
---|---|
US5157007A true US5157007A (en) | 1992-10-20 |
Family
ID=6395151
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/667,211 Expired - Lifetime US5157007A (en) | 1989-12-09 | 1991-03-11 | Catalyst for purification of exhaust gases of diesel engines and method of use |
US07/928,050 Expired - Lifetime US5514354A (en) | 1989-12-09 | 1992-08-11 | Method for using a catalyst to purify exhaust gases from a diesel engine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/928,050 Expired - Lifetime US5514354A (en) | 1989-12-09 | 1992-08-11 | Method for using a catalyst to purify exhaust gases from a diesel engine |
Country Status (17)
Country | Link |
---|---|
US (2) | US5157007A (en) |
EP (1) | EP0432534B2 (en) |
JP (1) | JP3297432B2 (en) |
KR (1) | KR0165111B1 (en) |
CN (1) | CN1039971C (en) |
AR (1) | AR247116A1 (en) |
AT (1) | ATE103504T1 (en) |
AU (1) | AU629433B2 (en) |
BR (1) | BR9006184A (en) |
CA (1) | CA2031762C (en) |
DE (2) | DE3940758A1 (en) |
ES (1) | ES2023787T5 (en) |
MX (1) | MX173116B (en) |
RU (1) | RU2022643C1 (en) |
TR (1) | TR25872A (en) |
UA (1) | UA12905A (en) |
ZA (1) | ZA909271B (en) |
Cited By (72)
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US5272125A (en) * | 1992-11-27 | 1993-12-21 | General Motors Corporation | Method of making a washcoat mixture and catalyst for treatment of diesel exhaust |
US5330945A (en) * | 1991-04-08 | 1994-07-19 | General Motors Corporation | Catalyst for treatment of diesel exhaust particulate |
US5338716A (en) * | 1992-12-01 | 1994-08-16 | Akzo Nobel Nv | Non-oxide metal ceramic catalysts comprising metal oxide support and intermediate ceramic passivating layer |
US5354720A (en) * | 1992-03-04 | 1994-10-11 | Degussa Aktiengesellschaft | Reduction in the quantity of NOx in lean exhaust gas of motor vehicle engines |
US5371056A (en) * | 1992-04-21 | 1994-12-06 | Degussa Aktiengesellschaft | Oxidative diesel control catalyst |
EP0694332A2 (en) | 1994-07-29 | 1996-01-31 | Johnson Matthey Public Limited Company | Catalyst |
US5527755A (en) * | 1992-04-09 | 1996-06-18 | Consortium Fur Elektrochemische Industrie Gmbh | Catalyst for the catalytic afterburning of exhaust gases containing carbon monoxide and/or oxidizable organic compounds |
US5571763A (en) * | 1992-06-02 | 1996-11-05 | Mazda Motor Corporation | Exhaust gas purification system and catalyst therefor |
WO1997000119A1 (en) * | 1995-06-15 | 1997-01-03 | Engelhard Corporation | Diesel engine exhaust gas catalyst and method of use |
US5628975A (en) * | 1989-02-06 | 1997-05-13 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Method for purifying exhaust gas from a diesel engine |
US5643542A (en) * | 1994-10-15 | 1997-07-01 | Degussa Aktiengesellschaft | Process for simultaneously reducing the amounts of hydrocarbons, carbon monoxide and nitrogen oxides contained in the exhaust gas from an internal combustion engine |
US5650126A (en) * | 1993-04-19 | 1997-07-22 | Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry | Deodorizing lamp and method for production thereof |
US5655212A (en) * | 1993-03-12 | 1997-08-05 | Micropyretics Heaters International, Inc. | Porous membranes |
US5705303A (en) * | 1994-02-17 | 1998-01-06 | Fuji Xerox Co., Ltd. | Toner composition for electrophotography |
US5911961A (en) * | 1994-12-06 | 1999-06-15 | Ict Co., Ltd. | Catalyst for purification of diesel engine exhaust gas |
US6074973A (en) * | 1998-03-20 | 2000-06-13 | Engelhard Corporation | Catalyzed hydrocarbon trap material and method of making the same |
US6093378A (en) * | 1997-05-07 | 2000-07-25 | Engelhard Corporation | Four-way diesel exhaust catalyst and method of use |
US6220022B1 (en) | 1997-03-06 | 2001-04-24 | Degussa Ag | Catalyst system for the treatment of exhaust gases from diesel engines |
US6248684B1 (en) | 1992-11-19 | 2001-06-19 | Englehard Corporation | Zeolite-containing oxidation catalyst and method of use |
EP1227232A2 (en) | 2001-01-27 | 2002-07-31 | OMG AG & Co. KG | Method for the regeneration of the catalytic activity of a catalyst, which is arranged in the exhaust pipe of a diesel engine and fulfills at least one oxidation function |
CN1098731C (en) * | 1998-12-16 | 2003-01-15 | 中国石油化工集团公司 | Catalyst carrier for heavy oil hydrogenation treatment and preparation thereof |
US20030108465A1 (en) * | 1999-07-02 | 2003-06-12 | Engelhard Corporation | Diesel oxidation catalyst |
US6613299B2 (en) | 2001-11-13 | 2003-09-02 | Sud-Chemie Prototech, Inc. | Catalyzed diesel particulate matter exhaust filter |
US20040067184A1 (en) * | 1991-02-22 | 2004-04-08 | Engelhard Corporation | Use of a catalyst for reducing the quantity and/or size of particles in diesel exhaust |
US20040124357A1 (en) * | 2002-12-31 | 2004-07-01 | Industrial Technology Research Institute | Gas analysis system and method |
US20040192546A1 (en) * | 2003-03-27 | 2004-09-30 | Zhongyuan Dang | Catalyst for the low temperature oxidation of methane |
US20050090393A1 (en) * | 2002-02-15 | 2005-04-28 | Efstathiou Angelos M. | Novel catalyst for the reduction of NO to N2 with hydrogen under NOx oxidation conditions |
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US7138358B2 (en) | 2001-11-13 | 2006-11-21 | Sud-Chemie Inc. | Catalyzed diesel particulate matter filter with improved thermal stability |
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Also Published As
Publication number | Publication date |
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JP3297432B2 (en) | 2002-07-02 |
RU2022643C1 (en) | 1994-11-15 |
ES2023787A4 (en) | 1992-02-16 |
CN1039971C (en) | 1998-09-30 |
ES2023787T5 (en) | 1997-02-16 |
CN1052262A (en) | 1991-06-19 |
DE3940758C2 (en) | 1993-07-08 |
KR910011325A (en) | 1991-08-07 |
AR247116A1 (en) | 1994-11-30 |
TR25872A (en) | 1993-09-01 |
JPH03224631A (en) | 1991-10-03 |
KR0165111B1 (en) | 1998-12-15 |
US5514354A (en) | 1996-05-07 |
UA12905A (en) | 1997-02-28 |
EP0432534A1 (en) | 1991-06-19 |
CA2031762C (en) | 1997-03-11 |
AU629433B2 (en) | 1992-10-01 |
ES2023787T3 (en) | 1994-07-01 |
DE59005194D1 (en) | 1994-05-05 |
EP0432534B1 (en) | 1994-03-30 |
CA2031762A1 (en) | 1991-06-10 |
AU6769990A (en) | 1991-06-13 |
MX173116B (en) | 1994-02-01 |
DE3940758A1 (en) | 1991-06-13 |
ATE103504T1 (en) | 1994-04-15 |
BR9006184A (en) | 1991-09-24 |
EP0432534B2 (en) | 1996-11-06 |
ZA909271B (en) | 1991-09-25 |
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